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用户将文本保存在包含单词“café”(注意“é”)的表单中。加载 #show
时显示此文本的页面,我得到一个 Encoding::CompatibilityError
留言incompatible character encodings: UTF-8 and ASCII-8BIT
.
错误可以在控制台中重复:
> r = Report.find(123) # load the record
> r.update(:comments => "café")
=> true
> r.comments
=> "caf\xC3\xA9"
> r.comments.encoding
=> #<Encoding:ASCII-8BIT>
> r.comments.encode("UTF-8")
Encoding::UndefinedConversionError: "\xC3" from ASCII-8BIT to UTF-8
from (irb):11:in `encode'
在 #show
上显示字段页面 ( <%= r.comments %>
) 产生错误。
编码不是 UTF-8,而是 ASCII-8BIT,这似乎是错误的,因为数据库列编码设置为 UTF-8,并且许多应用程序配置将编码定义为“UTF-8”。
理想情况下,“é”会按其输入的方式显示而不会出现任何错误,但在这一点上,我只想找到一种避免错误的方法。似乎我的所有表单(数十个)都容易受到此影响。
有没有办法让ASCII-8BIT字符显示出来?
强制编码 ( <%= string.force_encoding("UTF-8") %>
) 产生所需的结果,避免错误并正确显示字符,这导致了以下解决方法:
解决方法
# /config/initializers/active_record_extension_force_encode_read_attribute.rb
module ActiveRecordExtensionForceEncodeReadAttribute
def read_attribute(attr_name)
attribute = super
attribute.is_a?(String) ? attribute.force_encoding("UTF-8") : attribute
end
end
# include the extension
ActiveRecord::Base.send(:include, ActiveRecordExtensionForceEncodeReadAttribute)
出于多种原因,这感觉不对,但确实有效。
我的设置
我正在使用 mysql2
gem 。数据库列都是 UTF-8,TEXT 数据类型。我已经按照建议将 UTF-8 声明为我的应用程序的编码(通过 How to fix ActionView::Template::Error (incompatible character encodings: ASCII-8BIT and UTF-8) )。
参数看起来像这样
Parameters: {"utf8"=>"✓", "authenticity_token"=>"my_auth_token=", "commit"=>"Save", "report"=>{"comments"=>"café "}}
错误是Encoding::CompatibilityError in WeekendManagerReports#show
( View )与消息:incompatible character encodings: UTF-8 and ASCII-8BIT
并在我打印属性的 View 中被标记:
<%= @report.comments %>
错误堆栈跟踪:
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/core_ext/string/output_safety.rb:180:in `concat'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/core_ext/string/output_safety.rb:180:in `concat'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/buffers.rb:12:in `<<'
app/views/weekend_manager_reports/_show_fields.html.erb:68:in `_app_views_weekend_manager_reports__show_fields_html_erb___2906173005587511585_48245020'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:145:in `block in render'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:161:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:339:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:143:in `render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/partial_renderer.rb:306:in `render_partial'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/partial_renderer.rb:279:in `block in render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:159:in `block in instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:159:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/partial_renderer.rb:278:in `render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/renderer.rb:47:in `render_partial'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/helpers/rendering_helper.rb:35:in `render'
app/views/weekend_manager_reports/_show.html.erb:1:in `_app_views_weekend_manager_reports__show_html_erb__1009321416738415989_48308580'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:145:in `block in render'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:161:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:339:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:143:in `render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/partial_renderer.rb:306:in `render_partial'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/partial_renderer.rb:279:in `block in render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:159:in `block in instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:159:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/partial_renderer.rb:278:in `render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/renderer.rb:47:in `render_partial'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/helpers/rendering_helper.rb:35:in `render'
app/views/reports/show.html.erb:56:in `_app_views_reports_show_html_erb__2577918850424361413_47390860'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:145:in `block in render'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:161:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:339:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/template.rb:143:in `render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/template_renderer.rb:55:in `block (2 levels) in render_template'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:159:in `block in instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:159:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/template_renderer.rb:54:in `block in render_template'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/template_renderer.rb:62:in `render_with_layout'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/template_renderer.rb:53:in `render_template'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/template_renderer.rb:17:in `render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/renderer.rb:42:in `render_template'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/renderer/renderer.rb:23:in `render'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/rendering.rb:99:in `_render_template'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/streaming.rb:217:in `_render_template'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/rendering.rb:82:in `render_to_body'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/rendering.rb:32:in `render_to_body'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/renderers.rb:32:in `render_to_body'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/abstract_controller/rendering.rb:25:in `render'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/rendering.rb:16:in `render'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/instrumentation.rb:41:in `block (2 levels) in render'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
/home/vhc3248/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/benchmark.rb:303:in `realtime'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/core_ext/benchmark.rb:12:in `ms'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/instrumentation.rb:41:in `block in render'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/instrumentation.rb:84:in `cleanup_view_runtime'
vendor/bundle/ruby/2.2.0/gems/activerecord-4.1.9/lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/instrumentation.rb:40:in `render'
vendor/bundle/ruby/2.2.0/bundler/gems/wicked_pdf-8f970f29c4de/lib/wicked_pdf/pdf_helper.rb:22:in `render_with_wicked_pdf'
app/controllers/concerns/common_report_controller_functions.rb:88:in `block (2 levels) in show'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/mime_responds.rb:258:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/mime_responds.rb:258:in `respond_to'
app/controllers/concerns/common_report_controller_functions.rb:86:in `show'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/abstract_controller/base.rb:189:in `process_action'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/rendering.rb:10:in `process_action'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/abstract_controller/callbacks.rb:20:in `block in process_action'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:113:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:113:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:229:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:229:in `block in halting'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:166:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:166:in `block in halting'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:166:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:166:in `block in halting'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:229:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:229:in `block in halting'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:166:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:166:in `block in halting'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:166:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:166:in `block in halting'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:86:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:86:in `run_callbacks'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/abstract_controller/callbacks.rb:19:in `process_action'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/rescue.rb:29:in `process_action'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:159:in `block in instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/notifications.rb:159:in `instrument'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/instrumentation.rb:30:in `process_action'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
vendor/bundle/ruby/2.2.0/gems/activerecord-4.1.9/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/abstract_controller/base.rb:136:in `process'
vendor/bundle/ruby/2.2.0/gems/actionview-4.1.9/lib/action_view/rendering.rb:30:in `process'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal.rb:196:in `dispatch'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_controller/metal.rb:232:in `block in action'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/routing/route_set.rb:82:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/routing/route_set.rb:82:in `dispatch'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/routing/route_set.rb:50:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/journey/router.rb:73:in `block in call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/journey/router.rb:59:in `each'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/journey/router.rb:59:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/routing/route_set.rb:685:in `call'
vendor/bundle/ruby/2.2.0/gems/exception_notification-4.0.1/lib/exception_notification/rack.rb:28:in `call'
vendor/bundle/ruby/2.2.0/gems/warden-1.2.3/lib/warden/manager.rb:35:in `block in call'
vendor/bundle/ruby/2.2.0/gems/warden-1.2.3/lib/warden/manager.rb:34:in `catch'
vendor/bundle/ruby/2.2.0/gems/warden-1.2.3/lib/warden/manager.rb:34:in `call'
vendor/bundle/ruby/2.2.0/gems/rack-1.5.5/lib/rack/etag.rb:23:in `call'
vendor/bundle/ruby/2.2.0/gems/rack-1.5.5/lib/rack/conditionalget.rb:25:in `call'
vendor/bundle/ruby/2.2.0/gems/rack-1.5.5/lib/rack/head.rb:11:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/params_parser.rb:27:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/flash.rb:254:in `call'
vendor/bundle/ruby/2.2.0/gems/rack-1.5.5/lib/rack/session/abstract/id.rb:225:in `context'
vendor/bundle/ruby/2.2.0/gems/rack-1.5.5/lib/rack/session/abstract/id.rb:220:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/cookies.rb:562:in `call'
vendor/bundle/ruby/2.2.0/gems/activerecord-4.1.9/lib/active_record/query_cache.rb:36:in `call'
vendor/bundle/ruby/2.2.0/gems/activerecord-4.1.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:621:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/callbacks.rb:82:in `run_callbacks'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
vendor/bundle/ruby/2.2.0/gems/railties-4.1.9/lib/rails/rack/logger.rb:38:in `call_app'
vendor/bundle/ruby/2.2.0/gems/railties-4.1.9/lib/rails/rack/logger.rb:22:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/request_id.rb:21:in `call'
vendor/bundle/ruby/2.2.0/gems/rack-1.5.5/lib/rack/methodoverride.rb:21:in `call'
vendor/bundle/ruby/2.2.0/gems/rack-1.5.5/lib/rack/runtime.rb:17:in `call'
vendor/bundle/ruby/2.2.0/gems/activesupport-4.1.9/lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call'
vendor/bundle/ruby/2.2.0/gems/actionpack-4.1.9/lib/action_dispatch/middleware/static.rb:84:in `call'
vendor/bundle/ruby/2.2.0/gems/rack-1.5.5/lib/rack/sendfile.rb:112:in `call'
vendor/bundle/ruby/2.2.0/gems/railties-4.1.9/lib/rails/engine.rb:514:in `call'
vendor/bundle/ruby/2.2.0/gems/railties-4.1.9/lib/rails/application.rb:144:in `call'
最佳答案
您可以在 show
页面上显示文本:
<%= string.force_encoding('UTF-8') %>
关于mysql - 显示用户输入的 ASCII-8BIT 字符时出现 "incompatible character encodings: UTF-8 and ASCII-8BIT"错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42078430/
双引号的 ASCII 数字是多少? (") 另外,是否有指向任何地方的列表的链接? 最后,如何进入C族(尤其是C#) 最佳答案 引号的 ASCII 码是 34。 (好吧,严格来说,它不是真正的引号,而
考虑一台计算机,它有一个字节可寻址内存,根据大端方案组织成 32 位字。程序读取在键盘上输入的 ASCII 字符并将它们存储在连续的字节位置,从位置 1000 开始。在输入名称“johnson”后显示
\x20 下的大多数 ASCII 代码似乎完全过时了。他们今天有没有使用?它们是否可以被视为“可供抢夺”,还是最好避免它们? 我需要一个分隔符来将“行”分组在一起,为此目的选择其中一个肯定会很好。 来
非字母数字或标点符号的字符称为不可打印: Codes 20hex to 7Ehex, known as the printable characters 那么为什么是例如005 可表示(并由 club
在我的一次面试中,面试官问我为什么在 ASCII 表中大写字母在小写字母之前,我在 google.com 上搜索但没有找到,谁能给我答案?多谢! 最佳答案 我只是猜测,但我想这是因为最早的字符集根本没
由于编码原因可能会让您感到恐惧(我不好意思说),我需要在单个字符串中存储多个文本项。 我将使用一个字符来分隔它们。 哪个字符最适合用于此目的,即哪个字符最不可能出现在文本中?必须是可打印的,并且可能小
我的代码将一大堆文本数据传递给负责存储这些数据的遗留库。但是,它倾向于删除尾随空格。当我读回数据时,这是一个问题。由于我无法更改遗留代码,因此我考虑用一些不常见的 ASCII 字符替换所有空格。当我读
我正在检查井号 (£) 的 ASCII 值。我找到了多个答案: http://www.ascii-code.com/说 A3 = 163 是井号的 ASCII 值。 http://www.asciit
我们好像只用了'\0'(null),'\a'(bell),'\b'(backspace),'\t'(水平制表符),'\n'(line fee) ,'\r'(回车),'\v'(垂直制表符),'\e'(转
当我查看 rust ASCII operations感觉之间存在一致性问题 is_lowercase/is_uppercase: pub fn is_uppercase(&self) -> bool
我一直假设 ASCII 码的范围是 0 到 255。昨晚我不得不处理一个我认为是下划线但结果是 Chr(8230) 的字符。三个类似下划线的小点。这是在 AutoHotKey 脚本中。问题已解决,但给
也许我在使用 Google 方面做得很糟糕,但这些规范适用于 Bencoding继续引用称为“十进制 ASCII”的东西,这让我认为它与常规 ASCII 不同。有人能解释一下吗? 最佳答案 base明
我正在尝试将小字符串转换为它们各自的 ascii 十进制值。就像将字符串“Ag”转换为“065103”一样。 我尝试使用 integer_variable : Integer := Integer'V
我想使用程序或图形库将图像转换为 ASCII 艺术,但我想指定要使用的调色板(符号)。所以基本上我想要一个图像,它从某个字母 A 呈现为文本,它是完整 ASCII 表的子集,例如 A := {a,b,
是否可以使用 Graphviz 绘制 ASCII 图表? 类似的事情: digraph { this -> is this -> a a -> test } 给出了不想要的结果。 相反,我
关闭。这个问题是off-topic .它目前不接受答案。 想改进这个问题吗? Update the question所以它是on-topic用于堆栈溢出。 关闭 11 年前。 Improve thi
如何将 Žvaigždės aukštybėj užges 或 äüöÖÜÄ 之类的字符串转换为 Zvaigzdes aukstybej uzges 或 auoOUA,分别使用 Bash? 基本上我只
这个问题在这里已经有了答案: 关闭 10 年前。 Possible Duplicate: How would you convert from ASCII to Hex by character i
我有一个成员搜索功能,您可以在其中提供部分姓名,返回的内容应该是至少具有与该输入匹配的用户名、名字或姓氏之一的所有成员。这里的问题是某些名称具有“奇怪”的字符,例如 Renée 中的 é 并且用户不想
我有文件名“abc张.xlsx”,其中包含某种非 ASCII 字符编码,我想删除所有非 ASCII 字符以将其重命名为“abc.xlsx”。 这是我尝试过的: import os import str
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